What does intravenous administration mean?

Intravenous administration refers to the delivery of substances directly into a person's bloodstream through a vein. This method is commonly used in medical settings to provide fluids, medications, and nutrients efficiently. By administering substances directly into the systemic circulation, the effect can be immediate, which is crucial in emergency situations or when rapid absorption is needed.

This route is particularly advantageous because it bypasses the digestive system, allowing for 100% bioavailability of the medication or fluid being administered. Compared to other routes like oral or intramuscular, intravenous delivery ensures that the therapeutic agents reach their target more quickly and with more predictable effects.

The other methods of administration, such as intramuscular, subcutaneous (through the skin), or oral (through the digestive system), do not offer the same speed of action or direct entry into the bloodstream as intravenous administration does. Hence, the most accurate description of intravenous administration is "through the veins."